Are T12 and T8 Bulbs Interchangeable?
T12 Primarily Run off a Magnetic Ballasts and T8 Bulbs Operate on Electronic Ballasts. .. . So the Bottom Line Is That These Are Not Interchangeable and If...
T12 primarily run off a magnetic ballasts and T8 bulbs operate on electronic ballasts. ... So the bottom line is that these are not interchangeable and if you're going to upgrade from a T12 to a T8 bulb, then you also have to change out the ballast.
Can T8 bulbs be used in place of T12?
T8 tubes are simply 1 inch in diameter versus the 1.5 inch diameter of T12 tubes. In an effort to make LED tube lights compatible with the internal dimensions of most fixtures, you will find that most LED tube lights feature a T8 or 1 inch diameter. They can indeed be used in T12 fixtures.
How do I know if my ballast is T8 or T12?
If no markings are available, the size in diameter of the tube is the easiest way to determine the type you have installed. T8 tubes are 1-inch in diameter and T12 tubes are 1 1/2 -inch.
Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.
